Frequency measuring device for a crystal resonator



FIG. 1 is a perspective view of a frequency measuring device for a crystal resonator of a new design;

FIG. 2 is a perspective view thereof wherein a cover is open;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 10 is a rear elevational view thereof where the cover is open;

FIG. 11 is a front elevational view thereof where the cover is open;

FIG. 12 is a right side view thereof where the cover is open;

FIG. 13 is a left side elevational view thereof where the cover is open;

FIG. 14 is a bottom plan view thereof when the cover is open. 

The ornamental design for a frequency measuring device for a crystal resonator, as shown and described. 